Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é o 2012 dos mestres de Hamburgo?
 ###Tabelas: CREATE TABLE singles_performance_timeline (singles_performance_timeline_id AUTO_INCREMENT PRIMARY KEY, Tournament VARCHAR, 2008 VARCHAR, 2009 VARCHAR, 2010 VARCHAR, 2011 VARCHAR, 2012 VARCHAR) CREATE TABLE number_of_children_involved_in_ilo_categories_of_work_by_age_and_gender (number_of_children_involved_in_ilo_categories_of_work_by_age_and_gender_id AUTO_INCREMENT PRIMARY KEY, All Children ('000s) INT, Economically Active Children ('000s) INT, Economically Active Children (%) INT, Child Labour ('000s) INT, Child Labour (%) INT, Children In Hazardous Work ('000s) INT, Children In Hazardous Work (%) INT) CREATE TABLE titles (titles_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Tournament VARCHAR, Surface VARCHAR, Opponent in the final VARCHAR, Score VARCHAR) CREATE TABLE round_17 (round_17_id AUTO_INCREMENT PRIMARY KEY, Home team VARCHAR, Home team score VARCHAR, Away team VARCHAR, Away team score VARCHAR, Venue VARCHAR, Crowd INT, Date VARCHAR) CREATE TABLE election_results (election_results_id AUTO_INCREMENT PRIMARY KEY, District VARCHAR, Incumbent VARCHAR, Party VARCHAR, Elected INT, Status VARCHAR)  
SELECT 2012 FROM singles_performance_timeline WHERE Tournament = hamburg masters